During his earlier stiont, Upton was the head coach for four years, reaching the semi-finals of the IPL in 2013. The edition was particular difficult one as three of its players including the tainted S Sreesanth, were arrested midway into the tournament on allegations of spot-fixing.
Upton has guided and mentored several franchise teams across the globe, be it in IPL, Big Bash or Pakistan Super League.
His biggest achievement came with the Indian national team, as mental conditioning coach, when he combined with head coach Gary Kirsten to guide India to 2011 ODI World Cup title and World No.1 rank in ICC Test rankings.
Upton has also held the position of Performance Director of South Africa Cricket from 2011-2014, when South Africa became the first cricket team to hold the World No.1 ranking in all three formats of the game (2012).
"It gives us immense pleasure to announce Paddy joining the team. We welcome him back to the Royals Family. Paddy is someone who is well versed with the culture of Rajasthan Royals and he knows what it takes to achieve success in international sport at the highest level," said Manoj Badale, Lead Owner of Rajasthan Royals.